Gosh, there are a lot of Jodi Picoult fans on tonight! I thought it was utter tosh. There you go....
Agree that in the HG she should have ended up with Gale! A waste if ever there was one.
The HP films are fabulous to watch - the special effects are amazing. But they all pale compared to the books (because our imaginations are SO much better!) Although I have a personal theory that JK 'rounded' out the character of Snape after watching Rickman on screen (but that's just he makes me go weak at the knees!)
Films over books can work well if they add a clever twist where you think "oh wow! I BET the author wishes they'd thought of that!") but I'm struggling to think of examples.
In fact the only one I can think of is a cop-out (spoiler alert, but not bothered because can't see Picoult fans rushing to read this book:)
In the book Brighton Rock the main character ends up with a girlfriend by default, and he hates her and she loves him. (he is with her because she's potentially a witness against him) and at one point they go to a shop like Woolworths, and have an opportunity to make a recording which they receive as a vinyl record, and she makes him go in and record a message to her. And he does, but in a fit of loathing, he records a message which is something like "you think I love you, but I don't I hate you and everything you stand for".
At the end of the book he is dead, and she (in defense of him) rejects everything - her family, her church (she is a good Catholic girl) and so she's totally alone, and then she remembers the record she's still holding, and wants to go home and listen to it, so she's going home in a taxi to listen to this recording and the last line of the book is " to the worst horror of all".
But in the film, she gets home and plays the record and it gets stuck, so what she hears is "I love you... I love you... I love you".
Have also remembered: The Unbearable Lightness of Being is an amazing book and a beautiful film. One doesn't have too much to do with the other.